Step-by-step solution to find the factors and factor pairs of 90:
- If a whole number divides 90 evenly (remainder = 0), then it is a factor of 90 (divisor factor), and the corresponding quotient is also a factor of 90 (quotient factor)
- Divisor factors and quotient factors form a complete list of the factors and factor pairs of 90
- With the exception of 0, all whole numbers less than or equal to the square root of 90 (√90 ) are possible divisor factors of 90
- √90 = 9.4868
- Possible Divisor Factors of 90: 1, 2, 3, 4, 5, 6, 7, 8, 9
- Filter list of possible divisor factors by testing divisibility of 90 by 2, 3, 4, 5, and 9
- Possible Divisor Factors of 90 (filtered): 1, 2, 3, 5, 6, 7, 9
- Divide 90 by the possible divisor factors in the filtered list
- Factors of 90: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90
- Factor Pairs of 90: (1*90) (2*45) (3*30) (5*18) (6*15) (9*10)
- Note: the first number in each factor pair is a divisor factor and the second number is a corresponding quotient factor
